Rotary refrigerating apparatus.



D. J. HAVENSTRITE.

ROTARY RBFRIGEBATING APPARATUS.

APPLICATION FILED NQV. 18, 1011. 1, 1 09,223. \Patented Sept. '1, 1914.

B SHEETSSHEET 1.

D. J. HAVBNSTRITE. ROTARY REFRIGERATING APPARATUS.

APPLICATION FILED NOV.18, 1911.

1,109,223. Patented Sept. 1,1914.

6 SHEETSSHEET 2.

D. J. HAVENSTRITB.

ROTARY RBFRIGERATING APPARATUS. APPLICATION FILED NOV. 18, 1911.

1,109,223, Patented Sept. 1, 1914.

6 SHEETS-SHEET 3.

D. J. HAVENSTRITE.

ROTARY REFRIGERATING APPARATUS.

APPLICATION FILED NOV. 18, 1911.

1,109,223, Patented Sept. 1, 1914.

6 SHEETS-SHEET 4.

D. J. HAVBNSTRITE. ROTARY REFRIGERATING APPARATUS.

APPLICATION FILED NOVJB, 1911.

Patented Sept. 1, 1914.

8 SHEETS-SHBBT 5.

7 T T 6 2 J d w J 7 WW/ 1 0 0 1 4, WW W Q W77 0 0a ,7 E 4 6 l M w w 2 J W. 7/ a.

D. J. HAVENSTRITE. ROTARY REFRIGERATING APPARATUS.

APPLICATION FILED NOV.18, 1911.

Patented Sept. 1, 1914.

6 SHEETS--SHEET s.

UNI ED STATES PATENT oFFioE.

DAVID J. HAVENSTRITE, OF NEWARK, NEW JERSEY, ASSIGNOR TO JULIUS H. STONE, OF NOROTON HEIGHTS, CONNECTICUT.

' ROTARY REFRIGERATING APPARATUS.

. Specification of ietters Patent.

. Patented Sept. 1, 1914.

To all whom it may concern:

Be it known that I, DAVID J. HAVENSTRITE, a citizen of the United States, and a resident of Newark, in the county of Essex and 'State of New Jersey, have invented certain new and useful Improvements in Rotary Refrigerating Apparatus, of which the following is a specification.

This invention relates to rotary refrigerating apparatus which is applicable to rev refrigerant, liquefying the latter, which is afterward again vaporized to produce .cooling or refrigerating effects. The regulating elements of the invention'are automatic in by leakage. The refrigerant used may be carbonic acid gas, ammonia, sulfurous acid and many other volatile fluids.

Figure 1 represents atop plan view of a refrigerating apparatusexemplifyingthe invention, with the covers thereof removed and some parts broken away, Fig. 2 shows a partial section as on the line 2, 2 of Fig. 1, Fig. 3 is a partial section of Fig. 1 on the line 3, 3, Fig. 4 represents a section of Fig. 1 on the line 4, 4 Fig. 5 represents anenlarged portion of Fig. 2, Fig. 6 shows a section of Fig. 5 on the line 6, 6, Fig. 7 is a section as on the line 7,7 of Fig. 6, Fig. 8 represents a fulltop plan view of the inner portion of Fig. 6, Fig: 9 shows an enlarged portion of some details shown in Fig.2, Fig. 10 is a section of Fig. 9 on the line 10, 10, Fig. 11 shows a top view of Fig. 9, Fig. 12 represents an axial section of a charging valve, Fig. 13 shows an elevation and partial axial section of a supplemental charging valve, and Fig. 14 represents a modified end connection of acoil with its chamber partly in section.

' .The apparatus exemplifying the invention comprises a base plate 20 upon which is located a cooling tank 21. The upper edges of the latter are reinforced with the angle iron 22 that support the journal boxes 23 and 24. Upon the said angle iron is also supported the removable semi-cylindrical cover 25 reinforced with the angle irons 26. Water circulation inlet piping 27 and outlet piping 28 are connected tot-he tank 21.

prises the rotary conical reservoir 30 for a compressing fluid, which connects at its smallerend with a rotary cylindrical refrigerant compression chamber 31, and at its larger end with the rotary cylindrical refrigerant expansion chamber 32.

The compression chamber 31 comprises therear wall 33, cylindrical shell 34, and has bolted thereto the bonnet 37 that has extending therefrom the shaft end 38, that is journaled in the journal box 23. A drivin ley 39 is fastened to the shaft end 38. 1thin-the chamber 31 is-located a hollow floating guide bracket with the upper side walls 40 having the inlet ports 42, roof 43, the lower side walls 44, lower end walls 45 and bottom 46. A central chamber 47 extends to the roof 43, is connected -on one side with thefloating supporting sleeve 48 and on the opposite side with the floating supporting sleeve 49., The upper part of the latter is elongated and has extending therefrom a perforated supporting flange 50. The sleeve 48 is supported in a bearing 55 formed in the bonnet 37, and the sleeve 49is supported in a bearing 56 formed in the wall 33 of the chamber 31. The lower walls and bottom of the guide bracket form a counter weight chamber 57 in which a counterweight 60 may be carried to maintain said guide bracket in its normal osition, counterbalancing the buoyancy o the mercury on the outside thereof to practically eliminate any pressure between the supporting sleeves 48,

49 and their bearings. Through the roof 43 of the said guide bracket extends the vertical conduit '61 with the inlet port .62, and which is capped at its upperend by the cap 64. An elbow 65 connects the vertical conduit 61 with the horizontal refrigerant conduit 66., The end walls 45 have formed on their-outer surfaces the vertical grooves 70, and into the lower ends of which extend the stops. 71. Stops 72 fastened to the roof 43 extend over the upper ends of the grooves 7 0.

i 83 at the ends of the guides 81 are located to abut with the stops 72 and 71. Spherical roller bearings 84 are located within the guides 81 and bear between the grooves and the accompanying faces of the walls between said guides 81. Straps connect the said double chambers and constitute'regulating valves for the ports 42. Guide rods 86 extend from the straps 85. A float 87 for the liquefied refrigerant carries the central valve sleeve 88 which encircles the conduit 61. The float 87 is straddled by the guide rods 86 and is located at difl'erent levels by its buoyancy in the liquefied refrigerant.

The conicalreservoir 30 has formed at its large end, a charging chamber 92 for the compressing fluid, and adjacent thereto is located an overflow chamber 93 for said fluid. A wall 94 with the central axial opening 95 separates said chambers. Charging valves 96 are connected to the charging chamber 92 and the expansion chamber 32. They each have the lower threaded end 97 and the upper threaded end 98. A valve disk 99 for said valve has the spindle 100 which is guided in the guide 101. A spring 102 bears between the lower face of the disk 99 and the upper face of the guide 101. Theinlet port 102 of said valve isinternally threaded as shown at 103 for attaching a supplemental charging valve 105, and to the threaded end 98 is screwed a screw cap 106 when the said supplemental valve has been removed.

The charging chamber 92 is connected with the compression chamber 31 by a plurality of helical compressing coils, the number of which can be varied for various sizes of the apparatus, to obtain uniform charges of the compresslng fluid in the said chamber 31 without sudden jars. In the present instance four concentric helical coils have been shown, with the number of turns in the coils increasing from the outer to the inner one, to obtain approximately a uniform static head with each coil.

The inner and smaller coil is designated generally by the numeral 110 with the inlet leg 111, having the flange 112 secured to the shell of the chamber 92 over an opening 113 therein. The outlet leg of said coil is shown at 115 and has attached thereto the flange 116, which latter is fastened to the shell of the chamber 31 over an opening 117.

The second coil or the one next larger in diameter is designated generally by the numeral 120, with the inlet-leg 121 having the flange 122 secured to the shell of the chamber 92, over an opening 123 therein. The outlet leg of said second coil is shown at 125 and has attached thereto the flange 126, which latter isv fastened to the shell of the chamber 31 over an opening 127.

The third coil is designatedby the numeral with the inlet leg 131, having the flange 132 secured to the shell of the chamber'92 over an opening 133 therein. outlet leg of said third coil is shown at 135,

The

and has attached thereto the flange 136 which latter is fastened to the shell of the chamber 31 over an opening 137. The fourth or outer coil is designated generally by the numeral 110, with the inlet leg 141 having the flange 142, secured to the shell of the chamber 92 over an opening therein. The outlet leg of said fourth -or outer coil is shown at 145 and has attached thereto the flange 146 which latter is fastened to the shell of the chamber 31 over an opening 147, A return pipe 150 connects the overflow chamber 93 with charging chamber 92.

From the outer wall of the overflow chamber-93 extends the tubular shaft end 155, that is journaled in the journal box 24.

The said end extends to the wall 156 of the expansion chamber 32. The said chamber 32 at its outer end has clamped thereto the diaphragm 157 by means of the ring yoke 158. The horizontal refrigerant pipe 66 extends to and within the expansion chamber 32. The pipe 66 is closed at its end as shown at 159, and has formed in its wall an outlet port 160 for the discharge of the liquefied refrigerant. A sleeve valve encircles thesaid pipe 66 to automatically close or open the ports 160 if desired. A pair of lugs 166 extend from the sleeve expansion valve 165 and support one of the ends of each of the rods 167, the other ends of which latter are fastened to the diaphragm 157. A stop 168 for said diaphragm has extending therefrom the stem 169, which is in threaded engagement with ring yoke 158, and has secured to its outer end the regulating hand wheel 170. To the shell of the expansion chamber are connected, in this instance, a pair of spiral expansion coils designated generally by the numerals and 176. An inlet leg 177 is formed with the coil 175 and which carries the flange 178, that is secured to the shell of the chamber 32 over an opening 179 therein.

The outlet leg 180 of the coil 175 has attached thereto the flange 181, which latter is also fastened to the shell of said chamber 32 over an opening 182. The coil 176 has formed therewith the inlet leg having the flange 186, secured to the shell of the chamber 32 over an opening therein. The

outlet. leg 189 of the latter coil has attached thereto the flange 190 which is fastened to the shell of the chamber 32 over an opening therein.

The coils 175, 176 rotate in a brine tank which is reinforced at its upper edges by the angle iron 196. The angle iron 196 is fastened to the plate 197. In the lower portions of the sides of the tank 195 are connected the pipes 198. for the circulation of brine therethrough, the temperature of which is lowered by the expansion of the refrigerant in said coils 175, 176. Around the pipe 210 with the valve 211 and the pipe 212 with the valve 213. The outside surface of the cover 208 is covered with insulating material 215. The supplemental valve 105 has extending therefrom the threaded inlet conduit 220, that engages the threads 103 of the inlet .port 102 of the charging valve 96.

' The said conduit 220 terminates'in a cover,

with the openings 222 and the lug 223, that bears against the valve disk 99,- when said supplemental valve is secured to the charging valve. I

- In Fig. 14 which represents a modification of a portion of the invention, there is shown a partial section of the compressionfchamber 31 to which is screwed a nipple 230 with right hand threads.- A. right and left coupling 231 has one end 'in threaded engagement with the nipple 230, and a curved, pipe 232 is in engagement with the other. end of said coupling. A right and left coupling 233 is supported on the pipe 232, and carries one end of the helical coil 110. All of the ends of the coils may be secured to their chambers as just described.

To operate the apparatus a heavy compressing fluid like mercury is introduced into the charging chamber 92 by wayof the charging valve 96 andsupplemental valve 105, after which the liquid refrigerant is introduced into the expansion .chamber 32 by means of said valves. Then the supplemental valve 105 is detached from the valve 96 and the screw cap 106 is secured in place on the charging valve. f The stop 168 is preferably made to bear against the diaphragm 157 so as to continuously maintain the ports 160 open. The sleeve expansion valve 165 is operative when the stop 168 does not bear against the diaphragm 157. The valve 165'may be considered a reserve valve in case of any disarrangement of the float 87. The apparatus is next rotated by turning the driving pulley 39, by means not shown, in the directions of the arrows shown in Fig. 3 and Fig. 4. The mercury and vaporized refrigerant flow from the charging chamber 92 into the coils 110, 120, 130, 140. While the machine turning the mercury will enter the said coils, as long as it is at a level above the openings for said coils in the shell of the charging chamber 92, and will flow through said coils to be discharged into the com ression chamber 31, through the openings n the shell of the latter that connect with said coils. The

vaporized: refrigerant will also enter said coils while the openings for the same pass through the zone thereof above the mercury,

and the vaporized refrigerant will also be discharged into the chamber 31, after havmg been compressed and condensed by the charges of mercury in the coils. The vaporized refrigerant is compressed by the pressure or static eifect thereon of the different strata of mercury in the coils, and when the refrigerant reaches the compression chamber 31 it is a liquid. The heat of compression is absorbed and the condensa- -tion of the refrigerant is enhanced by, the

cooling water which is circulated through the cooling tank 21 by the pipes 27, 28. The

liquefied refrigerant in the chamber 31 enters the vertical conduit 61 through its inlet port 62, which is automatically uncovered y the float 87 rising, with the rise of the said liquid refrigerant in the chamber 31. The liquid'refrigerant then flows into and through the horizontal refrigerant conduit 66, and escapes through the ports 160 into the refrigerant expansion chamber 32. The

flow of the refrigerant through theports 160 is automatically controlled by the sleeve expansion valve 165 when in action or by the float 87. The movements of the valve 165 are in turn controlled bythe diaphragm 157, which is forced outwardly with the increase of pressure in the expansion chamber 32, thereby closing the ports 160, While in the normal position of said diaphragm the said ports 160 remain uncovered. The fiow of the refrigerant as already stated may be controlled with only the float 87 and port 62, when a cheaper construction is desirable, and the sleeve expansion valve 1'65 may Y at any time be placed out of operative position,'-by'bringing the stop 168, to bear on the diaphragm 157. The liquefied refrigerant-as it escapes from the ports 160 enters the expansion chamber 32, and from thence into the spiral expansion coils 175, 176, when it expands and extracts heat units from the brine in the brine tank 195, brine being circulatedthrough said tank by means of the pipes 198. The refrigerant after circulating through the coils 17 5, 176

is vaporized and returns to the chamber 32, from which latter it enters the tubular to fprevent the flow therethfough of the liqed refrigerant as it leaves the port 62.

The brine in the brinetank 195 may be d-ispensed with and the cooling effects of thecoils 175, 176 may be transmitted to air claim is:

1. In a refrigerating apparatus the combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber at one end of said reservoir, an expansion chamber at the other end thereof, means to conduct the refrigerant and compressing fluid from said reservoir to the compression chamber and at the same time compress and liquefy the refrigerant and means to conduct the liquefied refrigerant. to said expansion chamber.

2. In a refrigerating apparatus the combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber extending from said reservoir, an expansion chamber extending from the reservoir, a charging chamber formed with the reservoir, a compressing coil connecting the said charging chamber and the compression chamber, means to conduct the refrigerant from the compression chamber to the expansion chamber and means to lead the compressing fluid from the compression chamber back to said reservoir.

3. In a refrigerating apparatus the combination of a-rotary reservoir for a refrigerant and a compressing fluid, a compression chamber at one end of said reservoir, an expansion chamber at the other end of the reservoir, means to charge the reservoir, a coil connecting the charging end of the reservoir and the said compression chamber, a hollow bracket in the compression chamber, floating supporting sleeves extending from said bracket registering with bearings in the compression chamber, a regulating valve controlling a port leading into said bracket, a float in the compression chamber supporting said valve, a conduit having a port in the compression chamber leading through said hollow bracket and extending to the expansion chamber and a float encircling said conduit and controlling the port therein.

t. In a refrigerating apparatus the combination of a rotary reservoir, a charging chamber formed with the reservoir at one end thereof, a compression chamber at the other end of the reservoir, a coil connecting the charging chamber and said compression chamber, an expansion chamber beyond said charging chamber, expansion coils connects ed with the expansion chamber, means to control the flow of a compressing fluid from the compression chamber to said reservoir,

means to conduct a refrigerant from the compression chamber to the expansion chamber, and means to control the flow of said refrigerant to said expansion chamber.

5. In a refrigerating apparatus the combination of a rotary reservoir for a re frigerant and a compressing fluid, a compression chamber connected to said reservoir, an expansion chamber connected to said reservoir, a compressing coil with one end extending from the reservoir and the other end connected to said compression chamber, automatic means to discharge the compressing fluid from the compression chamber and return it to the reservoir to prevent the overflowing of said fluid in the compression chamber and automatic means to discharge the refrigerant from the compression chamber and lead it into said expansion chamber.

6. In a refrigerating apparatus the combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber connected with one end of said reservoir, an expansion chamber in connection with the other end of the reservoir, a charging chamber formed with the reservoir, a coil extending from said charging chamber to said compression chamber, a conduit for the refrigerant leading from said compression chamber to said expansion chamber, a

valve actuated by the buoyancy of the compressing fluid to regulate its return from the compression chamber to said reservoir and a valve in said compression chamber actuated by the buoyancy of the liquefied refrigerant to control its flow into said conduit to the expansion chamber.

7. In a refrigerating apparatus the combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber connected with one 'end of said reservoir, a shaft end for said compression chamber, a charging chamber at the opposite end of said reservoir, an overflow chamber adjacent to the charging chamber, a return pipe connecting the overflow chamber and the charging chamber, a tubular shaft end extending from the overflow chamber, an expansion chamber extending from the latter shaft end, journal bearings for the shaft ends, compressing coils connecting the charging chamber and the expansion chamber, expansion coils connected to the expansion chamber, means to control the How of the refrigerant from the compression chamber to the expansion chamber, means to control the level of the compressing fluid in the compression chamber, and means to absorb the heat of compression from the compressing coils.

8. Ina refrigerating apparatus the'combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber connected with one end of said reservoir, a charging chamber formed with the reservoir, an expansion chamber in connection with the charging chamber,

compressing coils interposed between the charging chamber and the compression chamber, expansion coils for the expansion chamber, means to control the level of the compressing fluid in the compression chamber, a conduit for the refrigerant extending from the compression chamber to within the expansion chamber and having a port, a

diaphragm in the expansion chamber, a

sleeve expansion valve supported on said condult, and connections between sald valve and said dlaphragm to actuate said valve over said port.

'trol the level of the compressing fluid in the compression chamber, a conduit connectmg the compression chamber with the expansion chamber and automatlc means to control theflow of the refrigerant through said conduit.

10. In a refrigerating apparatus the combination of a rotary reservoir for a refrigerant and a compressing fluid, a compression chamber connected with one end of said reservoir, a charging chamber at the other end of the reservoir, an overflow chamber coacting with the charging chamber, an expansion chamber in connection with the charging chamber, a tubular connection between the-overflow chamber andthe expansion chamber, compressing coils connecting the charging chamber with the expansion chamber, expansion coils connected to the expansion chamber, a conduit extending from within the compression chamber to within the expansion chamber and having a port on the portion thereof in the expansion chamber, means to automatically control the level of the compressing fluid in the compression chamber, and means in the expansion controlled by the pressure therein to control the opening ofsaid port, a cooling-tank for the compressing coils, and means to utilize the cooling effects of the expanslon colls.

Signed at the borough of Manhattan the county of New York and State of New York this 17th day of November A. D. 1911.

DAVID J. HAVENSTRITE.

Witnesses:

A. Am"; BONNEVILLE, ANNA SLUTSKY. 

